back number friendship songs/popular songs ranking [2026]
While back number is strongly associated with love songs, they actually have a lineup of moving masterpieces among their friendship songs as well—tracks that portray bonds with friends and the irreplaceable moments of everyday life.When Iyori Shimizu’s unadorned vocals meet lyrics that vividly evoke scenes from daily life, don’t you find that the face of someone important to you comes to mind each time you listen?In this article, we’ll introduce back number’s friendship songs in ranking format.We hope you find the one song that perfectly fits the relationships you share with your friends.
back number friendship songs/popular songs ranking [2026]
bouquetNEW!back number1rank/position

This is back number’s second single, released in June 2011.
The lyrics, which vividly portray the bittersweet and heartrending emotions of love, leave a strong impression.
Lines like “I’ll apologize as many times as it takes, and I’ll never forget to say thank you” convey a powerful determination to overcome any hardship.
The song was selected as the ending theme for the TBS music program COUNT DOWN TV, and a short film produced based on the track and released on YouTube also drew attention.
It’s a perfect song to perform at a dear friend’s wedding as a heartfelt blessing to the bride and groom.
Why not share hope for their future with your warm voice?
HAPPY BIRTHDAYNEW!back number2rank/position

A gem of a love song that delicately captures the bittersweetness of unrequited love through the once-a-year special day of a birthday.
The loneliness of not receiving a “Happy Birthday” from the one you like, and the hope that today you’ll finally find the courage to confess your feelings, press upon the heart alongside a beautiful melody.
back number’s February 2019 single was selected as the theme song for the TBS drama “A Story to Read When You First Fall in Love,” produced by Takeshi Kobayashi.
It’s also perfect for those looking for a track to use as BGM at a dear friend’s birthday party or in a surprise video.
When you want to convey your feelings through music, this is a song you’ll want to keep close to your heart.
Ritz partyNEW!back number3rank/position

If you’ve been having a hard time meeting up with your best friend, I recommend “Ritz Party.” It’s a track included on back number’s album Superstar.
The lyrics, sung from the perspective of a man in a long-distance relationship, express a deep love for his partner.
However, since the lyrics never explicitly state that it’s about a romantic relationship, you can easily listen to it as if the partner were a friend.
Also, be sure to pay attention to the poignantly expressive vocals of Iyori Shimizu, the band’s lead singer.
Until the day I can no longer rememberNEW!back number4rank/position

A heart-stirring ballad by back number that delicately captures the pain of loss.
It carefully depicts the sorrow of losing someone precious and how those memories become a part of oneself.
Released in October 2011 as their third single, it became one of the band’s signature songs.
It received high acclaim, including reaching No.
1 on the Billboard Japan Singles chart.
It’s a song you’ll want to listen to alone on a cold winter night.
It will resonate with those who have experienced heartbreak or parting, offering comfort and empathy.
Surrender yourself to back number’s delicate vocals and let them draw you into the cherished memories within your heart.
loveNEW!back number5rank/position

Anyone who has experienced unrequited love can painfully relate to the feeling of wanting to beg God, “Please let me be with that person!” This is a song by back number that pours out overflowing feelings for someone you love—someone you’ll probably no longer be able to see after graduation.
Fans have voiced strong support for the track, saying things like, “My head is completely filled with thoughts of the person I like,” and “I wish I were the one they think of when they hear this song.” Just thinking “I need to tell them how I feel” won’t get the message across.
Listen to this song, gather your courage, and go to your senpai!


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